Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2008-04-22
2008-04-22
Tran, Khanh C. (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S334000, C329S300000
Reexamination Certificate
active
10405039
ABSTRACT:
A method for the decoding of a signal in an interrogation/response type of communications system, the received signal being formed by a video signal and a signal containing the data, wherein the method comprises at least the following steps: 1) transposing the received data signal to an intermediate frequency Fl to obtain the signal Sdh(Fl), Sdb(Fl), 2) converting the intermediate frequency analog signal into a digital signal, 3) sampling the digital signal Sdh(Fl), Sdb(Fl) at a given frequency Fe to obtain the signal Seh, Seb, 4) transmitting the sampled signal Seh, Sebas well as the video signal Svh, Svbto a processing step so as to determine the initially received signal. The method can be applied to the demodulation of MSK, FSK, DPSK type waveforms.
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Lowe Hauptman & Ham & Berner, LLP
Thales
Tran Khanh C.
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